Most of my fake logos go here because yes
Background
This is the main film branch of the U.S. Navy, which was founded on April 1st of 1961 as a documentary film studio about the sea and ship-related content.
1st Logo (1966)
Visuals: On a blue background, there is a white, stylized military ship containing the letters "UNF" on top of a wavy line representing the ocean. Underneath is the text "U.S. NAVY FILM DEPARTMENT" in white.
Technique: None.
Music/Sounds: A nautical 7-note horn jingle.
Availability: Extinct. It has only appeared once in its lifetime since it has been confirmed by the studio that it was a placeholder/prototype logo. It may potentially be found on VHS tapes from the state, or possibly the internet archive website.